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Martin Sleziak
Martin Sleziak
4:54 PM
specific-question I would consider this elementary-number-theory rather than number-theory: For which Natural $n\ge2: \phi(n)=n/2$. (Although I am aware that the discussion on meta about these two tags was rather inconclusive.)
5
Q: For which Natural $n\ge2: \phi(n)=n/2$

Rachel BernoulliFor which Natural $n\ge2$ does this occur with?: $\phi(n)=n/2$

number-theory totient-function
 

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